(Zetaproteobacteria) (Zetaproteobacteria) is a biological class of the kingdom Bacteria and phylum Proteobacteria.
Mariprofundales
Alphaproteobacteria
Betaproteobacteria
Deltaproteobacteria
Epsilonproteobacteria
Gammaproteobacteria
Zetaproteobacteria